Setting up Exchange 2003 with existing Exchange 5.5 server

We are replacing our Exchange 5.5 server with a brand new server with Exchange 2003. We don't host our email on our Exchange server, people download them to .pst (I didn't set this up). The new Exchange server will host the email.

My question is, can I do a parallel install of Exchange 2003? Or do I have to remove the 5.5 server first?

Thanks in advance.
perikerAsked:
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SembeeConnect With a Mentor Commented:
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SembeeCommented:
They will co-exist. Put the CD in and let it auto play. Then follow the prompts for a New Exchange 2003 server, but choose Co-exist with Exchange 5.5. Follow ALL the steps, as it will guide you through the setup.

Only thing I would suggest though is to download Exchange 2003 SP2 from Microsoft and extract it. When the setup wizard asks you to install the Active Directory connector, don't install the one off the CD, instead install the one from the service pack - it is in the ADC directory. You will have to install that one at a later date anyway.

Simon.
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perikerAuthor Commented:
Once I'm ready to take 2003 live, how do I go about removing 5.5?
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